Santa Fe Independent Schools District said in a statement: “Santa Fe ISD became aware that a former high school teacher was arrested Monday, November 28, 2016, in connection with allegations that she may have engaged in an improper relationship with a student.

“As soon as the District learned of the allegations, an internal investigation began including campus administrators and the District police department, and the teacher's employment with the District ended.

"We want you to know that we take very seriously any concerns that relate to the well-being of each of our students and our first priority is the safety and education of our students in our district.

“We will continue to work in cooperation with law enforcement and the District Attorney's office. Inappropriate actions by teachers will never be acceptable in this district."

Gutierrez is being held on a $45,000 (£36,000) bond after being charged with three counts of having an “improper relationship” with her students.